Rib-trimming machine for innersoles.



G. L. ROLLINS.

RIB TRIMMING MACHINE PoR lnlmasous.

APPLIOATION FILED JULY 5, 1912.

. Patented Aug. 12, 1913.

- '3 SHEETS-SHEET 1.

46 A ff 57a G. L. ROLLINS.

RIB TRIMMINGMAGHINE FOR 11\U.\IERSOLESIv APPLICATION FILED JULY 5, 1912. 1,079,669, Patented Aug. 12, 1913.

` 3 SHEETS-SHEET 2.

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G.y L. RULLINS. RIB TRIMMING MACHINE FOB INNEBSOLBS. APPLICATION FILED JULY 5, 1912.

1,070,069; Patented Aug. 12, 1913.

' Jforvveys.

seem-Seres To'z'zljiZL-o'm t mgyf'conbfrn: i f

ik"tkiionirtliat I, Geenen L. RoLLnYs 'ofthe United States, and resident olli-Idgevateli izfthe county of Plyn'iouth and Stat-e'flVl iclu'isetts, have invented in iieiif* nset'ul l'niprei'enients in aehines for linnersoles, of y A u ng is amspecitication. '"ibjeet of'th-e vgresent intention is to de' aj'xinicliineefor trinnninfjY to a uni- Vib which is prc\.ided on "fol" an inner sole to receive ch imite the upper and welt A`actice to torni such a .rib )channel in the face of turning up the flap so pi-odueeth'and'lnpart by a rein-forcing strip .er sheet ofabri'elaid on the sole adjacent tojsuchf!'uptiirned ilap and bent up at its edg beside*the"tia-1' and the machine in presentfiniention is embodied is designed to `t "in af'rib so 'formed asuvwell as iQJi-acticil means foi-'accomplishing the l:detail in the following nillustrated inA the accoms; which machine embodies Jche best form non' known in ration of the machine refeirf Y i -sideele'vatienasfseen from the lett of Fie'. l; is al'ilaniyien; Fig. l is a sectional .'i'eir oftliepartspi the machine fivhi'eh di the drawings. Figure J RTB-TRTMMTNG 'MACT-MNE Fon INNnRsoL 'I Specification of Letters Patent.

foregoing.objects fis contained in the nia-v Eoin-e131; YATtoiIiINsg"er Bainefn'WATE-iaF MASSACHUSETTS, AssIGNoR To W. H. .MeEnurATneeMPANx or BOSTON, MASSACHUSETTS, A CORPORATION@ MAspatented Aug. 12,1913.

Application sied Jaiy. 1912. serial No. 707,796;

of which is fast and the other loose for `applying power thereto in the usual way.

The disk l5 is one member of a work feeding couple, and is in substance a feed Wheel or roll. Thecon'ipleinental member of this. couple is a disk or Wheel 26 carried by a shaft 27 which is held in bearings Q8 and 29 on a holder 30 pivotally connected with the head 13 by a stud 31, shown in dottedulines in Fig. l. Shaft Q7 carries a. gear Wheel 32 (File. l) which lies below and meshes withv a gear Wheelon the shaft 14. Apositire drive is,A thus ygiven" to bot-h teedrollsg'aiid' asf the ratio of the gear wheels 32 and'' is approximately the same as the ratio betiif'een the diameters of feed Wheels l5 and 26" thelat-ter have substantially the same peripheral speeld. Owing` to the-movable mount-ing` of bolder 30 which carries Wheel 26, the latter may yield in order to aecomn'iodate inequalities in thickness of' the rib of ail-inner sole, and is yieldiiigly pressed toward the wheel l5 by spring Se, which act-s against the helder 3() and .reacts against Ian adjustable abutment screw 35 threaded through a'lug, 3G on the side of the head. The pii-et of the holder 30 is in the plane of the gears 32 and in order to permit as wide separation of' disk 26 from Wheel l5v as maybe necessary Without*separating the gears. The limits of movement of disk QGare established by a st-op screw 3T adjustably threaded tl'nough plementa] disk 2G. Tlmsivhen the rib of an inner sole is mserted'between the feedj mem- "v Figs 4", gwhateve'ri eine pivoted at 4(3 lo :iii arm 4-7 on the head, and pressed 1 ally connected at-,5l to one arm of. .the

vf-"bcr crank lever, and is of sufiicient length with the cutter.

ltryperniit its other end to be connected with a treadle (not shown) near the floor whereby it. may he depressed to swing the presser roll away from the feed rolls to permit placing of the work. A stop screw 5121 threaded through a lug 52 on the head is in position to engage an arm o-f the bell crankv and limit the inward movement of the presser roll.

The cutter is rotated in the-same direction as the adjacent feed wheel 15 but at a higher rate of speed by a system of back gearing consisting of a shaft 53, .a small gear 54; secured to said shaft and mesl'iing with gear 83 on shaft '14 and a large gear-55 on shaft 53 meshing with the gear 42, which, as previously stated, is rigidly connected Shaft 53 is held in bearings 56 and. 57 on the side .ofthe head 13.

lIt will be evident that this mode of operating the knife causes it to make a drawing cut, which is especially effective in severing the fibers of'the textile fabric, used to support the rib in a reinforced inner sole. The

disk 26, of which one face is close to the.

edge of the knife, supports that part of the rib acted upon by the knife and serves as one member of a shear, but in addition to the shearing action the more rapid move,- ment of the knife edge in the direction of feed-causes the knife to be drawn along the rib, `whereby clean cutting of the rib throughout its entire length is assured. rfhe importance of this feature can hardly beto trim off the ribsof inner soles, the opera-- tion is defective in that the cloth-is cut raggedly. Mine is thel only machine of which I have knowledge in which a drawing action of the knife is providedwhich insures a clean and even cut under all conditions, even though the knife should not be in perfect condition and the reinforcing fabric should be wet.

Located near the knife is a grinding Wheel 5S secured to a shaft 60 which is carried in bearings on a pivotally mounted holder 61., the pivotof which is a stud G2 held ina bracket Gb on the head. Anothe-stud G4 for guiding the holder at the endwhere the- Y grinding wheel is located passes through a it may be engaged an'd so moved as to bringA the grinding wheel against the knife, such grindingv wheel being normally held away from the knife by a spring 68 connected to the handle G6 and s0 arranged as to pull away from the knife. The .driving means for the knife comprises a belt (39 passing around a pulley on`tlie grinder shaft (30 and laround a/pulley 71 on the main shaft 20.

Guide -pulleys 72 and 73 are mounted on the brackets .'-l in proper positions to bend the belt into the planes of the pulleys. The grinding wheel is located in a plane transverse to the plane of the knife, and intersecting'the circle of the knife a short distance Within its circumference, and it is located at such a position in this plane as to bear on the bevel adjacent to the edge of the knife when brought into operative position; It isalso driven in such a direction of rotation thatl its portion which engages the knife travels oppfsitely"fto the portion of the knife with which itis engaged; The resuit is that the minute scratches made in the knife by the abrasive are inclined to the edge ofl the knife backwardly, or at an acute angle to the direction in which the edge travels. Thus the microscopic irregularities in the knife edge are inclined forwardljv in a manner such as to `enter the work first, producing an effect somewhat like that of a cir-y cular saw, which is exceedingly effective in severing the reinforcing fabric.

The height of therib left after cutting is determined by the thickness of the disk Q6 l and wheel 15. A feature of the construction having particular value/is that the outer face of the disk 26 is made convex or crown. ing as shown ,in Figs. l and 4, such-crowning-face being adaptedto engagethe surface of the inner sole inside the rib and thereby prevent the edge of the disk, when the inner sole is first fed into the machine, fromv catching the edge of the reinforcing layer and pulling it away from the body of the inner sole.

' I claimz- 1. mi machine for the purpose indicated,

comprising in combination a pair of feed disks adapted to receive between them the rib of an innersele, and a disk knife rotating adjacent to and independentlv of said feed disks in position to cut the portion of the lip extending'beyond the feed `disks, one

of said disks haifing an edge crossing the l edge of the knife and constituting a complemental shear member.

2. A machine for the purpose indicated,

comprising in combination a pair of feed disks adapted to receive, between them the rib of an in nersole, a disk knife rotating adjacent to said feed disks with its edge crossing and substantially in Contact lwith an edge of one of the feed Avdisks in position to cut the portion of the lip extending beyond the feed disks, and means for driving said disk knife at a faster rate than the rate of the feeddisks.

` speed.

' beyond the periphery of the said feed disk,

and being driven independently of said disk.

fl. A trimming machine comprising co'perating feed disks, a disk cutter mounted coaXially with one of said feed disks and havfing its sharp edged periphery extending be- 'yond the periphery of the said feed disk,

means for driving said feed disks simultaneously in opposite directions of rotation at the same peripheral speed, and means for rotating the cutter at a higher peripheral 5. A machine for trimming the stitch-receiving rib of lan in'nersole, consisting essentially of complemental rotary feed members arranged to grasp such rib 1oetween them and a cutter coaxial with one of said members and overlapping the other member substantially in cont-act with an edge thereof,ar ranged on the side'of such members opposite from that on which the bodyv of the innei-sole lies, for severing the stock of the rib projecting beyond said members.

6. A machine for trimming the stitch-re ceiving rib of an innersole, consisting essentially of'complemental feedjmembers arranged to grasp such rib between them, means for positively moving the gripping portions of both said feed members in unison in the direction of feeding, a cutter arranged on the side of such members opposite fromq that on which the body of the innersole lies, entending partly across both members at the point where such members grip the rib, for severing the stock of the rib projecting beyond said members, and means for driving said cutter in the same general direction as one of said feed members and at a higher speed.

7. A machine for trimmingthle stitch-re. ceiving rib of an mnersole, conslstmg essentially of complemental feed rolls arranged to bear on opposite sides of such rib, means for driving said rolls positively in opposite directions of rotation so that their rib-grip- .ping portions move iin the same direction, a presser arranged to bear on the outer faceofthe sole 4and yieldingly .pressed toward said rolls opposite to the nip thereof, and

a cutter arranged close to the faces of the rolls opposite to thev presser for cutting oif such portions of the rib as extend` beyond the rolls. A v

8. A trimming machine including complemental feed rolls arranged in substantially the same plane and on substantially parallel axes suticiently near together to lgrasp the work between them, one of said rolls being movable. away from the other and yieldingly pressed toward-such othendriving means arranged for turning said rolls in relatively opposite directions of rotation, `a disk knife mounted rotatably close beside the end face of one of said rolls and overlapping the adjacent portion of the opposite roll, and means for driving the knife in the same relative direction vas the roll beside which it is placed, and at a higher peripheral speed,

whereby to sever with a drawing cut the stock which is fed by the rolls.

9. A machine for trimming the st1tch-re ceiving rib .of an inner sole, consisting of combined feeding and gaging members arranged to grip such rib between them, a means bearing on the face of the inner sole oppositeto that from which the rib projects, for holding the rib up to said members,

means for driving said member rotatablyv in unison, a yrotary disk knife extending partly 'across the faces of both said members near the point where they grip the rib and at the side of such members from which the rib projects, and means for rotating said disk knife independently of the feed members.

l0. An insole rib trimming machine coi prising essentially cooperating feed rolls adapted to grip the rib of the insole between them, adisk knife mounted coaXially with one of said rolls and extending across the complemental l roll in substantial contact with a face thereof, whereby said complemental roll constitutes also a restfor a shear member complemental to the knife, and.

means for driving the knife independently of the rolls.

In testimony whereof l have ail-ined my signature, in presence of two witnesses.

GEORGE L. ROLLINS- Witnesses:

C. S. HowpAND,

CLIFFORD H, WVARREN. 

